Where does “四面体” come from?

四面体 (Japanese) comes from Japanese 体, from Middle Chinese 體.

四面体 (Japanese): a tetrahedron

Definitions

  1. a tetrahedron

Ancestry of “四面体”, step by step

四面体 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1JapaneseIn general: the body, e.g. of a human or animal;...
2Middle Chinese

via Japanese 四面

StepLanguageWordMeaning
1Japanese四面four sides, all sides

Words derived from “四面体

Every word from Middle Chinese Every word from Japanese